"Egg cream is a dirty lie."

'That was a dirty lie,' Pridgeon came in unexpectedly, raising himself on to one elbow.

How dare you come here throwing around such dirty lies?

We are nobody's dirty little lies anymore.

"That's a dirty lie" used to have a ring to it, but that adjective is now almost exclusively applied to jokes and lyrics.

Just tell me if it's the truth or a dirty, seditious lie.

Jane got up, she helped Jack out, she said, 'Teachers, don't mess us about, we won't listen to your dirty lies.

That's nothing but a dirty lie!

That's a dirty lie; I never touched your money!